Final answer:
Janet spent $179.50 on gas for her trip, calculated by multiplying the number of gallons used (50) by the cost per gallon ($3.59).
Step-by-step explanation:
Janet drove from New York to Louisiana, using 50 gallons of gas priced at $3.59 per gallon. To calculate the total amount spent on gas, we multiply the number of gallons by the cost per gallon.
Total cost = Number of gallons × Cost per gallon
Total cost = 50 gallons × $3.59 per gallon
Total cost = $179.50
Therefore, Janet spent $179.50 on gas for her trip from New York to Louisiana.